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1. A point, in a compressible flow where the velocity of fluid is zero is called __________.

 
 
 
 

2. Which of the following statement is/are safety precaution of gas welding? I. Take special care to keep oil and grease away from oxygen. II.When using, do not place cylinders where oil might drop of them from overhead bearings III.Use oxygen in pneumatic tools or to start internal combustion engine

 
 
 
 

3. Which of the following statement is/are safety precaution of gas welding? I.Never use oxygen to blow out pipe or hose lines, dust clothes or create head pressure in tank II.Use cylinder as roller or lift it by cap III.Do not store oxygen cylinder near acetylene generator, carbide or other gas cylinder

 
 
 
 

4. Which of the following statement is/are safety precaution of gas welding? I.Do not use cylinder as roller or lift it by cap II.Keep oxygen cylinder away from any electrical contact III.Keep cylinder away from welding operation and close cylinder valve when work completed

 
 
 
 

5. What is the process in production of oxygen for gas welding?

 
 
 
 

6. The production of oxygen used in gas welding is from the separation of oxygen and hydrogen. What do you called this process?

 
 
 
 

7. The production of oxygen used in gas welding is from the separation of oxygen and nitrogen. What do you called this process?

 
 
 
 

8. Which of the following statement is/are NOT safety precaution of gas welding in acetylene tank?

 
 
 
 

9. Which of the following statement is/are NOT safety precaution of gas welding in acetylene tank?

 
 
 
 

10. In gas welding has different protective equipment, backflow protection should be provided to _________.

 
 
 
 

11. Which of the following an arc welder do NOT need protection?

 
 
 
 

12. Which of the following should be considered when selecting an arc welding power supply?

 
 
 
 

13. Which of the following should be considered when selecting an arc welding power supply?

 
 
 
 

14. Which of the following should be considered when selecting an arc welding power supply?

 
 
 
 

15. Which of the following should be considered when selecting an arc welding power supply?

 
 
 
 

16. In arc welding, what is an incomplete joint defect?

 
 
 
 

17. At the end of your fire hoses, what type of nozzle do you have?

 
 
 
 

18. On board, how many spare of fire hoses do you carry on your ship?

 
 
 
 

19. The number of fire hydrants you have onboard must be find in the ________.

 
 
 
 

20. The kinds of fire extinguishers do you have in your vessel must be find in the _________.

 
 
 
 

21. In identifying emergency equipment when you are new joiner on-board, what is the best practice?

 
 
 
 

22. In the engine room, why so many fire extinguishers?

 
 
 
 

23. Stirling and Ericson engines are similar with __________.

 
 
 
 

24. Stirling and Ericson engines are similar because they are both __________.

 
 
 
 

25. The advantage of regeneration in both Stirling and Ericson cycle is ___________.

 
 
 
 

26. The following is not correct for the same heat input and same compression ratio EXCEPT_______.

 
 
 
 

27. When the product of pressure and volume is remains constant the heat exchange process is called ___________.

 
 
 
 

28. The four different phases (expansion, transfer, contraction and transfer) having two isothermal and two constant volume processes is applied to __________.

 
 
 
 

29. A Stirling cycle is best described as __________.

 
 
 
 

30. The process in which heat is added in Stirling engine is called __________.

 
 
 
 

31. In Otto engine the process in which the heat is added is called _________.

 
 
 
 

32. A partial bearing is known as the__________.

 
 
 
 

33. A hydrostatic bearing is _________.

 
 
 
 

34. In order to realize the advantages of fluid friction, what is necessary to have?

 
 
 
 

35. The following is not correct concerning the rated life of bearing changes EXCEPT _________.

 
 
 
 

36. A bearing surface that completely surrounds the journal is called __________.

 
 
 
 

37. The purpose of a cage provided in ball bearings is to _________.

 
 
 
 

38. Where does tin base white metal used in the bearings?

 
 
 
 

39. The angle of the crankshaft after compression and before ignition is referring to_________.

 
 
 
 

40. The turning moment during the compression stroke in an internal combustion engine pertains to the ______.

 
 
 
 

41. A branched system of pipes provides to carry waste emissions away from the piston chambers of an internal combustion engines is known as _________.

 
 
 
 

42. A type of FILTER where the filtering elements is replaceable is called __________.

 
 
 
 

43. In order to protect adequately the engine bearings the most practical arrangement of lubricating oil filters should be __________.

 
 
 
 

44. The ratio of the volume at the end of heat addition to the volume at the start of heat addition is termed as ___________.

 
 
 
 

45. What does governor in an Internal Combustion engine control?

 
 
 
 

46. What is the fuel consumption of two stroke engine compared to four stroke engines with the same BHP?

 
 
 
 

47. With the same BHP, what should be the fuel consumption of four stroke compared to two stroke engine?

 
 
 
 

48. In designing exhaust system for diesel engines the most important factor to be considered is ___________.

 
 
 
 

49. By what means does a direct acting mechanical governor if used in some small diesel engines, controls its fuel flow?

 
 
 
 

50. Supplying or charging of fresh air readyfor compression is in the engine cylinder is called_______.

 
 
 
 

51. What can be found in both mechanical and hydraulic governors?

 
 
 
 

52. It consist of two equivalent forces acting in opposite directions along separate parallel lines of action is called _________.

 
 
 
 

53. When an indicator diagram from engine shows that the compression, combustion and expansion lines are all too low, its exhaust temperature too high and the engine output is too low, the best possible cause of this condition is _________.

 
 
 
 

54. What happens to the torque as the speed of diesel engine is engage to a reduction gear at constant output? 33. What happens to the torque as the speed of diesel engine is engage to a reduction gear at constant output?

 
 
 
 

55. If one unit of vessel steering hydraulic pump failed, the best action to be done is by ________.

 
 
 
 

56. The effect of a partially obstructed exhaust ports on a diesel engine is _______.

 
 
 
 

57. What is kinematic viscosity?

 
 
 
 

58. Coefficient of resistance is defined as the ratio of __________.

 
 
 
 

59. In order to measure the flow with a venturimeter, the venturimeter should be installed in what manner?

 
 
 
 

60. Which of the following is an example of laminar flow?

 
 
 
 

61. What method is/are used to determine the coefficient of viscosity?

 
 
 
 

62. What is meant by centre of gravity of the volume of the liquid displaced?

 
 
 
 

63. Comparable to the weight of the liquid being displaced, the body will sink down if the force of buoyancy is __________.

 
 
 
 

64. What is the effect to an object if the force of buoyancy is less than the weight of the liquid being displaced?

 
 
 
 

65. If a body floating in a liquid returns back to its original position, when given a small angular displacement, the body is said to be in _________.

 
 
 
 

66. What is meant by weight per unit volume of a liquid at a standard temperature and pressure?

 
 
 
 

67. In open channels, the specific energy is defined as ____________.

 
 
 
 

68. The Bernoulli's equation is based on the assumption that __________.

 
 
 
 

69. What force is dominating over the viscosity in a turbulent flow?

 
 
 
 

70. A water tank contains 1.3 m deep water. The pressure exerted by the water per meter length of the tank is ____________.

 
 
 
 

71. The flow of water through the hole in the bottom of a wash basin is an example of ___________.

 
 
 
 

72. A compound pipe is required to be replaced by a new pipe. The two pipes are said to be equivalent if the _____________.

 
 
 
 

73. In a footstep bearing, if the speed of the shaft is doubled, then the torque required to overcome the viscous resistance will be ____________.

 
 
 
 

74. When a cylindrical vessel containing some liquid is rotated about its vertical axis, the liquid surface is depressed down at the axis of its rotation and rises up near the walls of the vessel on all sides. This type of flow is known as ________________.

 
 
 
 

75. The shear stress-strain graph for a newtonian fluid is a __________.

 
 
 
 

76. In a venturimeter, the length of the divergent cone compared to that of the convergent cone is ___________.

 
 
 
 

77. In an external or internal mouthpiece, the absolute pressure head at vena contracta is zero when atmospheric pressure head is___________.

 
 
 
 

78. In a short cylindrical external mouthpiece, the vena contracta occurs at how much distance to the diameter of the orifice from the outlet of orifice?

 
 
 
 

79. Viscous force is the shear stress due to viscosity and cross-sectional area of flow __________.

 
 
 
 

80. With an increase in size of tube, the rise or depression of liquid in the tube due to surface tension will ___________.

 
 
 
 

81. The velocity corresponding to Reynold number of 2000 is called __________.

 
 
 
 

82. The power transmitted through the pipe is maximum when the head lost due to friction is equal to __________.

 
 
 
 

83. Select the correct statement __________.

 
 
 
 

84. The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called __________.The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called __________.

 
 
 
 

85. The most economical section of a trapezoidal channel is one which has hydraulic mean depth equal to __________.

 
 
 
 

86. The flow in a pipe is neither laminar nor turbulent when Reynold number is __________.

 
 
 
 

87. For a perfect incompressible liquid, flowing in a continuous stream, the total energy of a particle remains the same, while the particle moves from one point to another. This statement is called __________.

 
 
 
 

88. The buoyancy depends upon the __________.

 
 
 
 

89. The flow in a pipe is turbulent when Reynold number is __________.

 
 
 
 

90. The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at that point is known as _________.

 
 
 
 

91. The hammer blow in pipes occurs when ____________.

 
 
 
 

92. The intensity of pressure at any point in a liquid is ______________.

 
 
 
 

93. If the depth of water in an open channel is greater than the critical depth, the flow is called ___________.

 
 
 
 

94. When the water level on the downstream side of a weir is above the top surface of a weir, the weir is known as__________.

 
 
 
 

95. A weir is said to be narrow-crested weir, if the width of the crest of the weir is __________.

 
 
 
 

96. The tangential velocity of the water element having a free vortex is __________.

 
 
 
 

97. A fluid whose viscosity does not change with the rate of deformation or shear strain is known as __________.

 
 
 
 

98. The variation in the volume of a liquid with the variation of pressure is called its __________.

 
 
 
 

99. A venturiflume is used to measure the _____________.

 
 
 
 

100. An internal mouthpiece is said to be running free if the length of the mouthpiece is __________.

 
 
 
 

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